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AQI Calculations on 10/19/2017 1:00AM - 1:00AM

The EPA (Environmental Protection Agency) developed the AQI (Air Quality Index) to make reading ambient air data more understandable to the general public. When ambient air data is collected, the numbers are converted from their concentration levels into numbers on a scale. That scale is the pollutant's AQI value. (Click here for a more detailed description of the AQI scale). Below is a list of all of the latest AQI values collected.

Click on the column headings to sort data.

All data are collected real-time and have not been corrected nor validated.

Time *
(MST)
Monitoring Location Pollutant Interval
(Hr)
Air Quality AQI Avg.
1:00 AM ACAD O3 8 Good 16 17 PPB
1:00 AM ASP O3 8 Good 36 39 PPB
1:00 AM ASPN O3 8 Good 33 36 PPB
1:00 AM ASPN2 PM10 24 Good 33 36 µg/m3
1:00 AM ASPN2 PM2.5 24 Good 30 7 µg/m3
1:00 AM AURE O3 8 Good 38 41 PPB
1:00 AM BOU PM2.5 24 Good 13 3 µg/m3
1:00 AM BOUR O3 8 Good 18 19 PPB
1:00 AM CAMP CO 8 Good 6 0.5 PPM
1:00 AM CAMP NO2 1 Good 8 8 PPB
1:00 AM CAMP NO2 1 Good 8 8 PPB
1:00 AM CAMP O3 8 Good 16 17 PPB
1:00 AM CAMP PM10 24 Good 19 20 µg/m3
1:00 AM CAMP PM2.5 24 Good 28 7 µg/m3
1:00 AM CASA CO 8 Good 5 0.4 PPM
1:00 AM CASA NO2 1 Good 13 14 PPB
1:00 AM CASA O3 8 Good 8 9 PPB
1:00 AM CASA PM10 24 Good 24 26 µg/m3
1:00 AM CASA PM2.5 24 Good 28 7 µg/m3
1:00 AM CCOL PM10 24 Good 10 11 µg/m3
1:00 AM CCOL PM2.5 24 Good 22 5 µg/m3
1:00 AM CHAT O3 8 Good 35 38 PPB
1:00 AM CHAT PM10 24 Good 29 31 µg/m3
1:00 AM CHAT PM2.5 24 Good 24 6 µg/m3
1:00 AM CTZ O3 8 Good 21 23 PPB
1:00 AM DELT PM2.5 24 Good 26 6 µg/m3
1:00 AM ELK O3 8 Good 37 40 PPB
1:00 AM FTC CO 8 Good 5 0.4 PPM
1:00 AM FTC O3 8 Good 8 9 PPB
1:00 AM FTCF PM10 24 Good 31 34 µg/m3
1:00 AM FTCF PM2.5 24 Good 29 7 µg/m3
1:00 AM FTCW O3 8 Good 31 33 PPB
1:00 AM GJCT CO 8 Good 5 0.4 PPM
1:00 AM GJPB PM10 24 Good 21 23 µg/m3
1:00 AM GJPB PM2.5 24 Good 26 6 µg/m3
1:00 AM GREH PM10 24 Good 36 39 µg/m3
1:00 AM GREH PM2.5 24 Good 42 10 µg/m3
1:00 AM GRET CO 8 Good 1 0.1 PPM
1:00 AM GRET O3 8 Good 18 19 PPB
1:00 AM H24 CO 8 Good 6 0.5 PPM
1:00 AM HLD O3 8 Good 32 35 PPB
1:00 AM I25DEN CO 8 Good 8 0.7 PPM
1:00 AM I25DEN NO2 1 Good 30 32 PPB
1:00 AM I25DEN PM10 24 Good 34 37 µg/m3
1:00 AM I25DEN PM2.5 24 Good 38 9 µg/m3
1:00 AM I25GLO NO2 1 Good 34 36 PPB
1:00 AM I25GLO PM10 24 Good 37 40 µg/m3
1:00 AM I25GLO PM2.5 24 Good 38 9 µg/m3
1:00 AM MAN O3 8 Good 35 38 PPB
1:00 AM NJH PM2.5 24 Good 21 5 µg/m3
1:00 AM NREL O3 8 Good 38 41 PPB
1:00 AM PAL O3 8 Good 30 32 PPB
1:00 AM PDX O3 8 Good 28 30 PPB
1:00 AM RFN O3 8 Good 41 44 PPB
1:00 AM RIFL PM2.5 24 Good 15 4 µg/m3
1:00 AM RIFLO3 O3 8 Good 11 12 PPB
1:00 AM SWAN CO 8 Good 5 0.4 PPM
1:00 AM SWAN NO2 1 Good 25 26 PPB
1:00 AM SWAN PM10 24 Good 3 3 µg/m3
1:00 AM SWAN PM2.5 24 Good 11 3 µg/m3
1:00 AM WBY CO 8 Good 5 0.4 PPM
1:00 AM WBY NO2 1 Good 27 29 PPB
1:00 AM WBY NO2 1 Good 27 29 PPB
1:00 AM WBY O3 8 Good 3 3 PPB
1:00 AM WBY PM10 24 Good 28 30 µg/m3
1:00 AM WBY SO2 1 Good 1 1 PPB
1:00 AM WBY SO2 1 Good 1 1 PPB
1:00 AM WCH O3 8 Good 33 36 PPB

* All data are reported in Mountain Standard Time (MST). During daylight savings time add one hour to the reported hour.